Bi-Quartz Polarimeter SPB -8

Specications is same as per CAT NO 1531, the only difference is BiQuartz Polarimeter is tted with Bi-Quartz Prism (Instead Abbe Mica Sheet ). It is combination of two Quartz prism of equal color. In this Bi-Quartz Polarimeter you will observe full circle of Voilet color at initial reading and again after 180˚. You will get the same circle of same color .